ASoC: samsung: Extend snow driver to support MAX98091

Peach-pi board has MAX98091 CODEC. Extend snow machine driver to support
this board.

Signed-off-by: Tushar Behera <tushar.b@samsung.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/Documentation/devicetree/bindings/sound/snow.txt b/Documentation/devicetree/bindings/sound/snow.txt
index 678b191..e0b7a82 100644
--- a/Documentation/devicetree/bindings/sound/snow.txt
+++ b/Documentation/devicetree/bindings/sound/snow.txt
@@ -3,6 +3,7 @@
 Required properties:
 - compatible : Can be one of the following,
 			"google,snow-audio-max98090" or
+			"google,snow-audio-max98091" or
 			"google,snow-audio-max98095"
 - samsung,i2s-controller: The phandle of the Samsung I2S controller
 - samsung,audio-codec: The phandle of the audio codec
diff --git a/sound/soc/samsung/snow.c b/sound/soc/samsung/snow.c
index 014c177..8bbd348 100644
--- a/sound/soc/samsung/snow.c
+++ b/sound/soc/samsung/snow.c
@@ -103,6 +103,7 @@
 
 static const struct of_device_id snow_of_match[] = {
 	{ .compatible = "google,snow-audio-max98090", },
+	{ .compatible = "google,snow-audio-max98091", },
 	{ .compatible = "google,snow-audio-max98095", },
 	{},
 };